CN111502579B - Automatic alarm's gallery pressurize coring equipment - Google Patents
Automatic alarm's gallery pressurize coring equipment Download PDFInfo
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- CN111502579B CN111502579B CN202010346387.1A CN202010346387A CN111502579B CN 111502579 B CN111502579 B CN 111502579B CN 202010346387 A CN202010346387 A CN 202010346387A CN 111502579 B CN111502579 B CN 111502579B
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- coring
- pipe assembly
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- 238000005553 drilling Methods 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 55
- 239000002131 composite material Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 24
- 230000002265 prevention Effects 0.000 description 24
- 239000003245 coal Substances 0.000 description 20
- 238000007789 sealing Methods 0.000 description 17
- 238000012546 transfer Methods 0.000 description 11
- 238000003860 storage Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 150000001875 compounds Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses automatic alarm gallery pressure maintaining coring equipment, which comprises continuous conduit operation equipment and a coring device; the continuous conduit operation equipment comprises a transmission device, wherein the transmission device comprises an injection head and a tunnel drilling machine; the corer comprises an inner pipe assembly and an outer pipe assembly, the outer pipe assembly is connected with a tunnel drilling machine through a drill rod, the inner pipe assembly is connected with a continuous guide pipe, an injection head is used for lowering/lifting the continuous guide pipe, the inner pipe assembly is connected with the outer pipe assembly in a clamping mode, the inner pipe assembly comprises an inner pipe assembly and a center assembly, the center assembly comprises a center rod, the top end of the center rod is connected with the continuous guide pipe, the continuous guide pipe and the center rod are of hollow structures, a cable is arranged in the continuous guide pipe and the center rod, and a bottom surface device provides power and/or signals for electrical equipment in the corer through the cable. The invention has good operation performance, can prevent the core barrel from rotating in the coring process, keeps the rock core pure, and the inner pipe assembly is easy to separate from the outer pipe assembly, so that the cable is conveniently fed, and the cable receives signals and provides power.
Description
Technical Field
The invention relates to the field of coal mine tunnel coring operation, in particular to a tunnel pressure maintaining coring device with an automatic alarm function.
Background
The coal is an important basic energy source and raw material in China, and is a large country for coal production and a large country for coal consumption. The coal bed gas content and the coal bed gas pressure are main indexes for predicting the outburst dangerous area of the outburst coal bed and checking the area effect, the coal bed gas content is usually measured by adopting methods such as ground coal bed gas content measurement, geological survey gas content measurement, underground coal bed drilling coring of a mine, and the like, and because of differences of coal bed gas content testing conditions, testing methods and the like, the coal bed gas content testing results are often large in difference, low in precision, generally have estimation loss, and have limited guidance significance for coal mining.
For coal seam tunnel coring, the prior art has a publication number of CN204646157U, which is named as a coalseam gas rope coring device, the device uses a rope lifting/lowering coring device, compressed air is simultaneously required to be introduced into the coring device to drive the coring device to operate, the coring device with a publication number of CN107905752A is also used, the device uses the rope lifting/lowering coring device, the coring device is required to be driven by water pressure to operate,
In order to further realize pressure-maintaining coring of the coal bed, a coal sample sampler with the publication number of CN201811862U is disclosed, which carries out pressure-maintaining coring of the sample by means of a mucus and vacuum device, fluid mediums exist in the devices, which can cause certain pollution to the coal bed core and influence the measurement of parameters such as water content and the like,
At present, the application number is CN201410739874.9, the device is named a closed coring device for testing the content of ground drilling coal bed gas and rock stratum gas, the device is opened and started by means of the pushing action of a sample, the structure is complex, different accessories are required to be replaced for different coal beds to realize cutting, and the operation is not easy.
The coring device is generally composed of an inner pipe assembly and an outer pipe assembly, a gap exists between the inner pipe assembly and the outer pipe assembly, so that the risk of gas leakage is high, a blowout prevention box arranged at the top end of a drill rod is often used for preventing gas leakage at present, but gas still exists in the drill rod, so that potential safety hazards exist in coring operation,
The clearance between the inner tube assembly and the outer tube assembly also causes the core barrel to easily rotate along with the core outer tube, when external disturbance is large, the core component and the actual situation can have large errors,
In order to reduce errors caused by rotation, the currently used coring device usually comprises a single-acting device between the outer tube assembly and the inner tube assembly to reduce rotation of the coring barrel, but the single-acting device has an anti-rotation function, but the coring barrel still has a certain rotation, so that measurement errors are difficult to effectively reduce.
Meanwhile, the inner tube assembly is required to be placed down to the outer tube assembly for clamping connection in the coring process, and then the coring barrel in the inner tube assembly is required to core gas and the like, so that the pressure, the temperature and the like of a gas sample are difficult to monitor,
In the prior art, the device has the patent CN203430457U, CN104481439B and the like, and the state of a coring sample cannot be effectively recorded and the accuracy of coring sampling cannot be completely ensured by alarming whether a sealing ball valve is closed in place or not in the device through deformation of part parts in the coring process.
Disclosure of Invention
The invention aims to provide the automatic alarm pressure-maintaining coring equipment for the tunnels, which has good operation performance, can prevent the coring barrel from rotating in the coring process, keep the core clean, is easy to separate from the outer pipe assembly, is convenient to send into a cable, receives signals and provides power.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
The invention discloses automatic alarm gallery pressure maintaining coring equipment, which comprises continuous conduit operation equipment and a coring device; the continuous conduit operation equipment comprises a transmission device, wherein the transmission device comprises an injection head and a tunnel drilling machine; the corer comprises an inner pipe assembly and an outer pipe assembly, the outer pipe assembly is connected with a tunnel drilling machine through a drill rod, the inner pipe assembly is connected with a continuous guide pipe, an injection head is used for lowering/lifting the continuous guide pipe, the inner pipe assembly is connected with the outer pipe assembly in a clamping mode, the inner pipe assembly comprises an inner pipe assembly and a center assembly, the center assembly comprises a center rod, the top end of the center rod is connected with the continuous guide pipe, the continuous guide pipe and the center rod are of hollow structures, a cable is arranged in the continuous guide pipe and the center rod, a bottom surface device provides power and/or signals for electrical equipment in the corer through the cable, the electrical equipment comprises a sensor, the sensor is used for monitoring the total clamping state of the inner pipe assembly and the outer pipe, and the sensor is connected with a processing terminal through the cable.
Preferably, the inner tube assembly comprises a core outer barrel, a self-gravity valve is arranged at the bottom of the core outer barrel and comprises an annular valve seat and a circular valve clack, the edge of the circular valve clack is hinged to the edge of the top surface of the annular valve seat, and the circular valve clack is of an elastic structure.
Preferably, the bottom of the central rod is fixedly connected with a piston, a pressure maintaining controller is arranged in the piston,
The pressure maintaining controller comprises a pressure maintaining cylinder, the pressure maintaining cylinder is vertically arranged, a pressure maintaining piston is arranged in the pressure maintaining cylinder and is in sliding fit with the inner wall of the pressure maintaining cylinder, the pressure maintaining piston divides the pressure maintaining cylinder into an upper cavity and a lower cavity, the lower cavity is communicated with the bottom surface of the piston, and gas is filled in the upper cavity.
Preferably, a composite bearing is arranged between the inner tube assembly and the central assembly, the central assembly comprises a positioning tube section,
The composite bearing comprises a base, wherein the base is in a thrust bearing form, the base is arranged in the inner pipe assembly, an annular ball recess is formed in the inner wall of the base, a plurality of ball holes are formed in the middle of the positioning pipe section along the circumferential direction, the spherical rollers are arranged in the ball holes, and the convex parts of the spherical rollers are matched with the ball recesses.
Preferably, the central assembly is provided with a first annular convex edge, a thrust bearing is arranged between the first annular convex edge and the inner pipe assembly, and the first annular convex edge is positioned between the two thrust bearings.
Preferably, the top of the inner tube assembly is provided with a spring clamping mechanism, the inner wall of the top of the outer tube assembly is provided with a spring clamping chamber, the outer wall of the spring clamping mechanism is provided with a latch groove, a latch is arranged in the latch groove, the bottom of the latch is rotationally connected with the inner wall of the latch groove, a spring is arranged between the top of the latch and the latch groove, the latch is matched with the spring clamping chamber,
The sensor comprises a pressure sensor which is arranged in the spring clamping mechanism and is connected with the processing terminal through a signal cable, and the signal cable is arranged in the continuous conduit and the central rod.
Preferably, the center assembly further comprises a core inner barrel, the bottom of the center rod is inserted into the core inner barrel, the bottom end of the center rod is provided with a temperature sensor and a pressure sensor, the processing terminal is connected with the temperature sensor and the pressure sensor through a signal cable, and the signal cable is arranged in the continuous guide pipe and the center rod.
Preferably, the continuous conduit operation equipment further comprises a reel device, the reel device comprises a collecting ring and a reel, the cable in the continuous conduit is electrically connected with the collecting ring, the reel is arranged on a reel frame, a calandria device assembly is arranged on the reel frame and used for controlling the sequence of reels of the continuous conduit, and the reel is driven by a reel motor;
The calandria device assembly comprises a bracket and a moment limiter, a lifting hydraulic rod is arranged between the bracket and the winding drum frame, a bidirectional screw rod is arranged on the bracket, a guide device is arranged on the bidirectional screw rod, a mechanical counter and a rotating system are arranged in the guide device, the rotating system comprises a plurality of conveying wheels, and a lifting oil cylinder is arranged between the guide device and the bidirectional screw rod.
Preferably, the bottom end of the positioning pipe section is provided with an alarm sensor, and the alarm sensor is a pressure sensor.
Preferably, the injection head comprises two transfer mechanisms arranged side by side, the continuous conduit being located between the two transfer mechanisms, the continuous conduit being transferred by being gripped by the two transfer mechanisms.
The invention has the beneficial effects that:
1. the self-weight valve is simple in structure and good in operation performance.
2. The invention uses the anti-rotation devices such as the continuous conduit, the composite bearing and the like, can prevent the core barrel from rotating in the coring process, has limited coring depth because of being applicable to the tunnel, has limited length of the continuous conduit, has good anti-torsion capability and can provide better anti-rotation capability.
3. The self-weight valve is used in the invention, and no power is additionally provided for pressure maintaining and fidelity, so that the purity of the rock core can be kept.
4. The continuous guide pipe and the central rod are hollow structures, the control cable and the power cable are arranged in the hollow structures, electric equipment such as a temperature sensor, a pressure sensor and other monitoring equipment can be arranged in the corer easily, and a heating device, a cooling device, a pressurizing device and the like can also be arranged, so that power can be provided for the devices through the cables in the hollow structures.
5. When the spring is pressed, the pressure sensor button is pressed down and used for monitoring whether the inner tube assembly is clamped in place or not, the ground can receive in-place signals, and the temperature sensor and the pressure sensor are positioned in the storage cylinder and can detect temperature and pressure changes in the coring process.
6. The device has simple structure, the inner pipe assembly is easy to separate from the outer pipe assembly, and the failure rate is low.
Drawings
FIG. 1 is a schematic illustration of the present invention;
FIG. 2 is a schematic illustration of an outer tube assembly;
FIG. 3 is a cross-sectional view of the outer tube assembly;
FIG. 4 is a cross-sectional view of the core front center assembly mounted to the inner tube assembly;
FIG. 5 is a cross-sectional view of the center assembly mounted to the inner tube assembly after coring;
FIG. 6 is a schematic view of the latch mechanism of FIG. 5;
FIG. 7 is a schematic view of the composite bearing set of FIG. 5;
FIG. 8 is a schematic view of the self-weight valve of FIG. 5;
FIG. 9 is a schematic view of the composite bearing set prior to coring;
FIG. 10 is a schematic view of a continuous conduit work apparatus;
FIG. 11 is a side view of a transfer device;
FIG. 12 is a schematic view of a reel apparatus;
FIG. 13 is a side view of the reel apparatus;
FIG. 14 is a schematic view of a guide arch and injector head;
FIG. 15 is a schematic diagram of an injector head;
FIG. 16 is a schematic diagram II of an injector head;
FIG. 17 is a schematic diagram of a clamping block;
FIG. 18 is a schematic view of a hydraulic clamping mechanism;
FIG. 19 is a cross-sectional view of the inner tube assembly as it passes through the inner blowout preventer.
In the figure: 1-reel device, 2-transfer device, 3-corer, 4-drill pipe, 51-first pipe section, 511-snap-in chamber, 512-hanging ring, 52-second pipe section, 53-third pipe section, 54-fourth pipe section, 55-reaming section, 551-reaming ridge, 56-coring bit, 561-blade, 562-first slope, 563-first through hole, 61-lock nut, 611-first set screw, 62-snap-in mechanism, 621-latch slot, 622-latch, 623-pin, 624-spring hole, 625-recess, 626-spring, 627-stop collar, 628-first chamfer, 629-second chamfer, 63-connecting segment, 631-first annular ledge, 632-thrust bearing, 633-seal assembly, 64-fifth tube segment, 641-second annular ledge, 65-sixth tube segment, 651-first seal groove, 67-seventh tube segment, 671-composite bearing set, 6711-base, 6712-top ring, 6713-middle ring, 6714-bottom ring, 6715-roller, 6716-ball recess, 672-fourth set screw, 68-core outer barrel, 681-annular recess, 682-self-weight valve, 683-annular valve seat, 684 circular clack, 71-center rod, 711 second set screw, 712-piston, 713-second seal groove, 714-fourth ramp, 715-third seal groove, 81-core barrel, 811-compensating spool piece, 8111-third set screw, 812-locating spool piece, 8121-ball hole, 8122-spherical roller, 8123-third ramp, 813-storage barrel, 8131-anti-slip flange, 814-fixed spool piece, 8141-second through hole, 8142-key, 8143-first keyway, 8144-second keyway, 9-continuous conduit, 101-temperature sensor, 102-pressure sensor, 103-pressure sensor, 104-signal cable, 1101-reel, 1102-reel rack, 1103-gauntlet device assembly, 1104-rack, 1105-lifting hydraulic ram, 1106-bi-directional screw, 1107-guiding device, 1108-lifting cylinder, 1109-transfer wheel, 1201-guiding arch, 1202-injection head, 1203-drill rack, 1204-turntable, 1205-drill cylinder, 1206-guide wheel, 1207-press wheel, 1208-folding hydraulic ram, 1209-sliding block, 1210-outer frame, 1211-conveyor chain, 1212-conveyor chain motor, 1213-lower sprocket, 1214-holding block, 1215-holding base, 1216-holding claw, 1217-friction bump, 1218-hydraulic clamping mechanism, 1219-clamping arm, 1220-clamping hydraulic cylinder, 1221-conveyor chain counter, 1222-load sensor, 1223-blowout preventer, 1224-arching beam, 1225-locking tab, 1226-tensioner, 1301-moving base, 1302-crawler, 1401-valve tube section, 1402-connecting tube section, valve tube section, and method of manufacturing the same, 1403-female section, 1404-outlet section, 1405-male section, 1406-blowout-preventing valve seat, 1407-blowout-preventing valve cover, 1408-torsion spring, 1409-cylindrical pin, 1410-fifth inclined plane, 1411-sixth inclined plane, 1501-pressure maintaining cylinder, 1502-pressure maintaining piston, 1503-upper chamber, 1504-lower chamber.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings, wherein the temperature sensor 101, the pressure sensor 102, the pressure sensor 103, and the signal cable 104 are not shown in fig. 4, but only in fig. 5.
As shown in fig. 1 to 19, the invention discloses an automatic alarm tunnel pressure maintaining coring device, which comprises a continuous conduit operation device and a coring device 3.
The continuous conduit operation equipment comprises a reel device 1 and a transfer device 2, wherein the reel device 1 and the transfer device 2 are respectively provided with a movable base 1301, the movable base 1301 is respectively provided with a crawler 1302,
The reel apparatus 1 is used for accommodating a continuous conduit 9, the reel apparatus 1 comprises a reel 1101 and a reel frame 1102, the reel 1101 is arranged on the reel frame 1102, a calandria device assembly 1103 is arranged on the reel frame 1102,
Calandria device assembly 1103 includes support 1104, moment limiter, support 1104 rotates and connects reel frame 1102, support 1104 and reel frame 1102 are equipped with lift hydraulic stem 1105, be equipped with bi-directional lead screw 1106 on the support 1104, bi-directional lead screw 1106 is equipped with guider 1107, be equipped with mechanical counter in the guider 1107, a rotating system, be equipped with lifting cylinder 1108 between guider 1107 and the bi-directional lead screw 1106, rotating system includes a plurality of transfer wheels 1109, reel device 1 still is equipped with the collecting ring, be equipped with the cable in the continuous pipe 9, the collecting ring is connected to the cable electricity, the cable is used for providing power for electrical equipment in the pit, when continuous pipe 9 is in the transmission process, guider 1107 is along bi-directional lead screw 1106 round trip movement, make continuous pipe 9 orderly accomodate on reel 1101.
The transfer device 2 comprises a guide arch 1201, an injection head 1202 and an underground drill rig,
The tunnel drilling machine comprises a drilling machine bracket 1203, a turntable 1204 is arranged on the drilling machine bracket 1203, the bottom end of the drilling machine bracket 1203 is hinged with a mobile base 1301, a drilling machine hydraulic cylinder 1205 is arranged between the drilling machine bracket 1203 and the mobile base 1301, the top end of the drilling machine bracket 1203 is hinged with an injection head 1202,
The bottom end of the guide arch 1201 is hinged with the top end of the injection head 1202, a plurality of guide wheels 1206 are arranged at equal intervals along the length direction on the top of the guide arch 1201, a plurality of pressing wheels 1207 are arranged at equal intervals along the length direction on the top of the guide arch 1201, the guide wheels 1206 and the pressing wheels 1207 form a feeding channel of the continuous guide pipe 9,
The bottom of the guide arch 1201 is provided with a hydraulic assembly, the hydraulic assembly comprises a folding hydraulic rod 1208, the bottom end of the folding hydraulic rod 1208 is hinged with an injection head 1202, the top end of the folding hydraulic rod 1208 is hinged with a sliding block 1209, the sliding block 1209 is in sliding fit with the bottom surface of the guide arch 1201, the guide arch 1201 comprises a plurality of arches 1224, the arches 1224 are in hinged fit, locking sheets 1225 are arranged between adjacent arches 1224, the locking sheets 1225 are used for locking the guide arch 1201 when the arches 1224 are stretched, the guide arch 1201 is prevented from collapsing,
The injection head 1202 comprises an outer frame 1210, two parallel conveying mechanisms are installed in the outer frame 1210, a continuous guide pipe 9 is located between the two conveying mechanisms, the conveying mechanisms comprise a conveying chain 1211, a conveying chain motor 1212 is arranged at the top of the conveying chain 1211, a lower sprocket 1213 is arranged at the bottom of the conveying chain 1211, a tensioning device 1226 is arranged on the lower sprocket 1213 and used for keeping the conveying chain 1211 in a tensioning state, a clamping block 1214 is installed on the conveying chain 1211, the clamping block 1214 comprises a clamping base 1215 and a clamping claw 1216, friction protrusions 1217 are arranged in the clamping claw 1216, two adjacent parts of the two conveying chains 1211 are respectively provided with a clamping hydraulic cylinder 1220 through a hydraulic clamping mechanism 1218, the hydraulic clamping mechanism 1218 comprises two clamping arms 1219, the clamping arms 1219 are in sliding fit with the conveying chain 1211, a turnover device is arranged between the injection head 1202 and a drilling machine bracket 1203, a conveying chain counter 1221 and a load sensor 1222 are arranged in the outer frame 1210, and a rotary table 1204 of the conveying device 2 is cored through a drill rod 4 connector 3.
The corer 3 comprises an outer tube assembly and an inner tube assembly, the inner tube assembly performs lifting or lowering movement through a continuous guide tube, the inner tube assembly is installed inside the outer tube assembly, the outer wall of the inner tube assembly is in clearance fit with the inner wall of the outer tube assembly, the inner tube assembly comprises an inner tube assembly and a center assembly, the center assembly is installed in the inner tube assembly, the outer wall of the center assembly is in sliding fit with the inner wall of the inner tube assembly, and the outer tube assembly is connected with a drill rod 4.
The outer tube assembly comprises a first tube section 51, a second tube section 52, a third tube section 53, a fourth tube section 54, a reaming section 55 and a coring bit 56 which are coaxially arranged and connected from top to bottom,
The first tube section 51, the second tube section 52, the third tube section 53, the fourth tube section 54 constitute an outer tube,
The first pipe section 51 and the second pipe section 52 are detachably connected, the bottom end of the first pipe section 51 is a male head, the top end of the second pipe section 52 is a female head, a spring clamping chamber 511 is arranged in the middle of the first pipe section 51, the spring clamping chambers 511 are circumferentially arranged, the number of the spring clamping chambers 511 is two, the two spring clamping chambers 511 are oppositely arranged, a first sealing ring is arranged between the first pipe section 51 and the second pipe section 52 and is in sliding fit with the inner pipe assembly, a hanging ring 512 is arranged between the first pipe section 51 and the second pipe section 52, the hanging ring 512 is matched with the bottom edge of the spring clamping mechanism 62, and when the inner pipe assembly reaches a preset position in the outer pipe assembly, the bottom surface of the spring clamping mechanism 62 is located on the hanging ring 512 and used for limiting the descending position of the inner pipe assembly.
The second pipe section 52 is detachably connected with the third pipe section 53, the bottom end of the second pipe section 52 is a male head, the top end of the third pipe section 53 is a female head,
The third pipe section 53 is detachably connected with the fourth pipe section 54, the bottom end of the third pipe section 53 is a male head, the top end of the fourth pipe section 54 is a female head,
The fourth pipe section 54 is detachably connected with the reaming section 55, the bottom end of the fourth pipe section 54 is a male head, the top end of the reaming section 55 is a female head, a plurality of reaming convex edges 551 are arranged on the outer wall of the reaming section 55 along the circumferential direction, the reaming convex edges 551 are arranged at an angle with the vertical direction, an oblique channel is formed between the adjacent reaming convex edges 551,
The reaming section 55 is detachably connected with the coring bit 56, the bottom end of the reaming section 55 is a male head, the top end of the coring bit 56 is a female head, blades 561 of the bits are arranged on the bottom surface of the coring bit 56, the blades 561 are distributed in an annular array by taking the center point of the coring bit 56 as the center of a circle, a first through hole 563 is arranged in the center of the bottom surface of the coring bit 56, the diameter of the first through hole 563 is smaller than the inner diameter of the coring bit 56, and a first slope 562 with gradually reduced diameter from top to bottom is arranged on the inner wall of the middle of the coring bit 56.
The inner pipe assembly comprises a lock nut 61, a spring clamping mechanism 62, a connecting section 63, a fifth pipe section 64, a sixth pipe section 65, a seventh pipe section 67 and a core outer barrel 68 which are sequentially arranged from top to bottom,
The lock nut 61 is detachably connected with the spring clamping mechanism 62, the bottom end of the lock nut 61 is a female head, the top end of the spring clamping mechanism 62 is a male head, the top surface of the lock nut 61 is provided with a first fixing screw 611, the first fixing screw 611 is axially arranged, the first fixing screw 611 penetrates through the lock nut 61 and then is inserted into a pit on the top surface of the spring clamping mechanism 62, the first fixing screw 611 is in threaded connection with the lock nut 61,
The latch mechanism 62 is detachably connected with the connecting section 63, the bottom end of the latch mechanism 62 is a female head, the top end of the connecting section 63 is a male head, the outer wall of the latch mechanism 62 is provided with latch grooves 621, the latch grooves 621 are arranged circumferentially, two latch grooves 621 are arranged oppositely, a latch 622 is installed in the latch groove 621, a pin shaft 623 is arranged between two side walls of the latch groove 621, the pin shaft 623 penetrates through the latch 622, the pin shaft 623 is rotationally connected with the latch 622, the pin shaft 623 is arranged at the bottom of the latch groove 621, the surface of the top of the latch 622 facing the latch mechanism 62 is provided with a spring hole 624, the top of the latch groove 621 is provided with a concave 625, a spring 626 is installed between the latch 622 and the latch groove 621, one end of the spring 626 is inserted into the spring hole 624, the other end of the spring 626 is inserted into the concave 625, a limit ring 627 is installed at the edge of the top of the latch groove 621, the limit ring 627 is sleeved on the periphery of the latch mechanism 62, the limit ring 627 is in sliding connection with the latch mechanism 62, the bottom surface of the limit ring 627 is a first inclined surface 628 facing the latch groove 621, the top of the latch mechanism 622 is a second inclined surface 629, the surface of the latch mechanism 62 is opposite to the top of the latch mechanism, the first inclined surface is adapted to the second inclined surface of the first inclined surface 622, the bottom surface is adapted to the bottom of the inclined surface 62, the distance of the bottom of the inclined surface of the latch mechanism 62 is controlled to be ejected from the bottom of the inclined surface of the latch mechanism,
The middle part of the connecting section 63 is provided with a first annular convex edge 631, the inner wall of the top end of the fifth pipe section 64 is provided with a second annular convex edge 641, the first annular convex edge 631 is positioned in the fifth pipe section 64, the periphery of the first annular convex edge 631 is in clearance fit with the inner wall of the fifth pipe section 64, a thrust bearing 632 is arranged between the top surface of the first annular convex edge 631 and the bottom surface of the second annular convex edge 641, a sealing component 633 is arranged between the inner wall of the first annular convex edge 631 and the outer wall of the connecting section 63,
The fifth pipe section 64 is detachably connected with the sixth pipe section 65, the bottom end of the fifth pipe section 64 is a female head, the top end of the sixth pipe section 65 is a male head, a thrust bearing 632 is arranged between the top surface of the sixth pipe section 65 and the bottom surface of the first annular convex ridge 631, a first sealing groove 651 is arranged on the periphery of the bottom of the male head of the sixth pipe section 65, an O-shaped sealing ring is arranged in the first sealing groove 651,
The sixth pipe section 65 is detachably connected with the seventh pipe section 67, the bottom end of the sixth pipe section 65 is a male head, the head end of the seventh pipe section 67 is a female head, the inner wall of the head of the seventh pipe section 67 is provided with a compound bearing group 671, the compound bearing group 671 is fixed in the seventh pipe section 67 through a fourth fixing screw 672,
The seventh pipe section 67 is detachably connected with the core outer barrel 68, the bottom end of the seventh pipe section 67 is a male head, the top end of the core outer barrel 68 is a female head, the inner wall of the bottom end of the core outer barrel 68 is provided with an annular concave 681, the top of the annular concave 681 is provided with a self-gravity valve 682, the self-gravity valve 682 comprises an annular valve seat 683 and a circular valve clack 684, the annular valve seat 683 is fixedly connected with the inner wall of the annular concave 681, the circular valve clack 684 is of a deformable structure, the edge of the circular valve clack 684 is hinged with the edge of the top surface of the annular valve seat 683, the size of a channel in the center of the annular valve seat 683 is gradually reduced from top to bottom,
When the self-weight valve 682 is opened, the circular valve flap 684 is arcuate, the circular valve flap 684 is stored within the annular recess 681,
The locking section is installed to annular sunken 681 bottom, and locking section top inner wall is the shoulder hole structure, and locking section bottom outer wall is from top to the second domatic that the end size reduces gradually, and first domatic 562 adaptation second domatic.
The center component comprises a center rod 71 and a core inner cylinder 81, the bottom of the center rod 71 is inserted into the core inner cylinder 81, the center rod 71 is in sliding fit with the core inner cylinder 81, the core outer cylinder 68 and the core inner cylinder 81 form a core cylinder,
The top of the spring catch mechanism 62 is provided with a second fixing screw 711, the second fixing screw 711 is arranged in a radial direction, the second fixing screw 711 penetrates through the top of the spring catch mechanism 62 and then is inserted into the central rod 71,
The core inner barrel 81 comprises a compensating pipe section 811, a positioning pipe section 812 and a storage barrel 813 which are arranged in sequence from top to bottom,
The compensating pipe 811 is detachably connected with the positioning pipe 812, the bottom end of the compensating pipe 811 is a male head, the top end of the positioning pipe 812 is a female head, the third fixing screw 8111 penetrates through the positioning pipe 812 and then is screwed into the compensating pipe 811, the compensating pipe 811 is in sliding fit with the central rod 71,
The positioning pipe section 812 is detachably connected with the storage barrel 813, the bottom end of the positioning pipe section 812 is a male head, the top end of the storage barrel 813 is a female head, a gap exists between the inner wall of the positioning pipe section 812 and the central rod 71,
The composite bearing set 671 comprises a base 6711, the base 6711 is a thrust bearing, the inner wall of the base 6711 is provided with an annular ball recess 6716, the middle part of the positioning pipe section 812 is provided with a plurality of ball holes 8121 along the circumferential direction, the spherical rollers 8122 are arranged in the ball holes 8121, the convex parts of the spherical rollers 8122 can slide in the ball recesses 6716, the depth of the ball recesses 6716 is smaller, when the positioning pipe section 812 is moved upwards by external force, the spherical rollers 8122 can slide out of the ball recesses 6716 more easily,
The base 6711 includes a top ring 6712, a middle ring 6713, a bottom ring 6714, which are sequentially stacked, a roller 6715 is provided between the top ring 6712 and the middle ring 6713, a roller 6715 is provided between the middle ring 6713 and the bottom ring 6714, a ball recess 6716 is provided on the inner wall of the middle ring 6713,
The inner wall of the top of the positioning pipe section 812 is provided with a fixed pipe section 814, the fixed pipe section 814 is sleeved on the periphery of the central rod 71, the key 8142 is spherical, the fixed pipe section 814 is provided with a second through hole 8141 for adapting the key 8142, the diameter of the key 8142 is larger than the length of the second through hole 8141, the inner wall of the positioning pipe section 812 is provided with a first key slot 8143, the first key slot 8143 is adapted to the key 8142, the outer wall of the bottom of the central rod 71 is provided with a second key slot 8144, the second key slot 8144 is adapted to the key 8142,
When the key 8142 is positioned within the second through hole 8141 and the first keyway 8143, the fixed tube segment 814 is fixedly coupled to the positioning tube segment 812 by the key 8142,
When coring, the central rod 71 moves upward, the key 8142 disengages from the first key slot 8143, then the key 8142 enters the second key slot 8144, the fixed pipe section 814 is fixedly connected with the central rod 71 through the key 8142, the central rod 71 drives the fixed pipe section 814 to move upward, the fixed pipe section 814 abuts against the bottom surface of the compensating pipe section 811, the central rod 71 in turn drives the core inner barrel 81 to move upward,
The inner wall edge of the bottom surface of the positioning pipe section 812 is a third inclined surface 8123 with gradually increased diameter from top to bottom,
The bottom end of the positioning pipe section 812 is provided with an alarm sensor, which is a pressure sensor,
The inner wall of the bottom of the storage barrel 813 is provided with a plurality of anti-skid convex edges 8131 along the axial direction, and the anti-skid convex edges 8131 are of annular structures.
The bottom end of the central rod 71 is fixedly connected with a piston 712, a plurality of second sealing grooves 713 are arranged on the periphery of the bottom end of the central rod 71, O-shaped sealing rings are arranged in the second sealing grooves 713, the O-shaped sealing rings at the bottom end of the central rod 71 are used for being connected with the inner wall of a positioning pipe section 812 in a sealing way, the central rod 71 and the piston 712 are integrally manufactured, the reel device 1 provides a continuous guide pipe 9 for the transmission device 2, the continuous guide pipe 9 penetrates through a drill rod 4 and then is connected with the top end of the central rod 71,
The outer edge of the top surface of the piston 712 is a fourth inclined surface 714 with gradually increased diameter from top to bottom, the third inclined surface 8123 is matched with the fourth inclined surface 714, the piston 712 is slidably connected with the inner wall of the storage cylinder 813, a third sealing groove 715 is arranged on the outer periphery of the top of the piston 712, a sealing ring is arranged in the third sealing groove 715,
The piston 712 is internally provided with a pressure maintaining controller which comprises a pressure maintaining cylinder 1501, the pressure maintaining cylinder 1501 is vertically arranged, the pressure maintaining cylinder 1501 is internally provided with a pressure maintaining piston 1502 which is in sliding fit with the inner wall of the pressure maintaining cylinder, the pressure maintaining piston 1502 divides the pressure maintaining cylinder 1501 into an upper chamber 1503 and a lower chamber 1504 which are isolated from each other, the lower chamber 1504 is communicated with a storage cylinder 813, the upper chamber 1503 is filled with gas such as nitrogen and the like,
The center rod 71 is of a hollow structure, a measurement and control assembly is arranged in the piston 712, the measurement and control assembly comprises a temperature sensor 101 and a pressure sensor 102 which are axially arranged, the pressure sensor extends into a storage cylinder 813, a pressure sensor 103 is arranged in a recess 625, the pressure sensor 103 is a key-type sensor or a capacitance-type sensor, the temperature sensor 101, the pressure sensor 102 and the pressure sensor 103 are connected with a processing terminal through a signal cable 104, the signal cable 104 is positioned in the center rod 71, and the signal cable 104 extends from the center rod to the continuous conduit 9 and then is connected with the processing terminal from the ground.
The internal blowout prevention joint comprises a valve pipe section 1401 and a connecting pipe section 1402, wherein the valve pipe section 1401 is detachably connected with the connecting pipe section 1402, the bottom end of the valve pipe section 1401 is a male head, the top end of the connecting pipe section 1402 is a female head,
The top of the connecting tube section 1402 is a female section 1403, the bottom of the connecting tube section 1402 is an outlet section 1404, the inner diameter of the female section 1403 is larger than the outlet section 1404, the inner diameter of the outlet section 1404 is larger than the outer diameter of the inner tube assembly,
The bottom of the valve tube section 1401 is a male section 1405, the bottom end of the valve tube section 1401 is a blowout prevention valve seat 1406, the bottom surface of the valve tube section 1401 is provided with a blowout prevention valve cover 1407, the edge of the blowout prevention valve cover 1407 is rotationally connected with the edge of the bottom surface of the valve tube section 1401, the bottom surface of the blowout prevention valve cover 1407 is provided with a torsion spring 1408, one end of the torsion spring 1408 is connected with the blowout prevention valve cover 1407, the other end of the torsion spring 1408 is connected with the inner wall of the female section 1403, the sealing surface of the blowout prevention valve seat 1406 is a fifth inclined surface 1410 with the diameter gradually increased from top to bottom, the sealing surface of the blowout prevention valve cover 1407 is a sixth inclined surface 1411, the fifth inclined surface 1410 is matched with the sixth inclined surface 1411,
In order to better fix the torsion spring 1408 and the blowout prevention valve cover 1407, a cylindrical pin 1409 is arranged, the cylindrical pin 1409 is arranged on the bottom surface of the blowout prevention valve cover 1407, the cylindrical pin 1409 penetrates through the middle of the blowout prevention valve cover 1407 and the torsion spring 1408,
The sum of the length of the male portion 1405 and the diameter of the blowout prevention valve cap 1407 is less than or equal to the length of the female portion 1403, when the blowout prevention valve cap 1407 is in the open state, i.e., the blowout prevention valve cap 1407 is in the vertical state, the blowout prevention valve cap 1407 is still in the female portion 1403,
The blowout prevention valve cover 1407 can be a deformable structure, when the blowout prevention valve cover 1407 is jacked up by the inner pipe assembly, the blowout prevention valve cover 1407 can be changed into an arc shape, and then the blowout prevention valve cover is attached to the inner wall of the female head section 1403, so that the device structure is more compact.
In actual use, the continuous guide pipe 9 is continuously lowered through the continuous guide pipe operation equipment, so that the inner pipe assembly is lowered in the drill pipe 4, when the inner pipe assembly reaches the corresponding position of the outer pipe assembly, the lock bar 622 of the spring clamping mechanism 62 enters the spring clamping chamber 511, the inner pipe assembly is lowered to a specified position, at the moment, the spring clamping mechanism 62 is located on the hanging ring 512, the spring 626 pressed on the pressure sensor 103 is loosened, the ground receives an in-place alarm signal of the pressure sensor 103,
In operation, the continuous conduit 9 is connected with the central rod 71, for coring in coal mines, the length of the continuous conduit 9 used is shorter, the torsion resistance of the continuous conduit 9 is good,
Meanwhile, the invention uses the composite bearing set 671, the spherical roller 8122 is arranged between the composite bearing set 671 and the positioning pipe section 812, and can also prevent the rotation of the core inner barrel 81,
The invention is also provided with the connecting section 63, which can transmit the rotation of the outer tube assembly to the core outer cylinder 68, reduce the influence of the outer tube assembly on the core inner cylinder 81, further prevent the core inner cylinder 81 from rotating,
The center assembly and the inner tube assembly are provided with two sets of thrust bearings 632, and when the spring clamping mechanism 62 rotates, the two sets of thrust bearings 632 act to prevent the core barrel from rotating.
Before coring, the upper chamber 1503 is filled with nitrogen, the dwell piston 1502 is positioned at the bottom of dwell cylinder 1501,
During coring, the central assembly is lifted, the core enters the core barrel, the piston 712 is lifted to reduce the resistance of the core barrel to the core, meanwhile, the lower chamber 1504 is filled with gas, the pressure maintaining piston 1502 moves upwards after receiving the pressure of the gas in the environment, the gas in the upper chamber 1503 is compressed, the temperature sensor 101 and the pressure sensor 102 in the piston 712 can be used for monitoring the data of the sample in the storage barrel in real time,
After coring, the core is filled in the core inner cylinder 81, the piston 712 of the center rod 71 moves to the positioning pipe section 812, an alarm sensor between the piston 712 and the positioning pipe section 812 sends out an alarm signal, the piston 712 is shown to be in contact with the positioning pipe section 812, the coring is completed, the self-gravity valve 682 is closed, the core cylinder forms a closed structure, if gas leakage occurs, gas in the upper chamber 1503 expands, gas in the lower chamber 1504 is filled in the core cylinder, pressure loss is reduced, and the pressure maintaining effect is achieved.
The main coring workflow includes the following steps:
S1, installing catheter-resuming operation equipment;
s2, connecting the coring bit 56 and the outer pipe to assemble an outer pipe assembly, connecting the outer pipe assembly and the drill rod 4 by using related equipment of the tunnel drilling machine, and gradually lowering the outer pipe assembly from the ground to a coring position;
S3, after the inner pipe assembly is assembled on the ground, connecting the continuous guide pipe 9 with the central rod 71 of the inner pipe assembly through a quick connector;
s4, continuously lowering the continuous guide pipe 9 through continuous guide pipe operation equipment, so that an inner pipe assembly is lowered in the drill pipe 4, when the inner pipe assembly reaches the corresponding position of the outer pipe assembly, after the ground receives a sensor in-place alarm signal, the latch 622 of the latch mechanism 62 enters the latch chamber 511, the inner pipe assembly is lowered to a specified position, and the latch mechanism 62 is located on the suspension ring 512;
S5, starting a ground drilling machine, rotating the turntable 1204 and performing pressurized drilling, wherein the inner pipe assembly and the outer pipe assembly are matched to drill downwards at the moment, coring operation is started, and the ground blowout prevention box 1223 achieves sealing of a wellhead of the drilling tool at the moment;
S6, stopping the continuous guide pipe 9 from being lowered by the continuous guide pipe operation equipment in the coring operation process, keeping the position of the continuous guide pipe 9 in the drill rod 4 unchanged, keeping the central assembly stationary, and feeding the core into the barrel along with the downward movement of the inner pipe assembly and the outer pipe assembly;
in the operation process, under the working condition of rotation of an external drilling tool, the inner core barrel 81 is kept static by the combined action of the multiple anti-rotation mechanisms and the continuous guide pipe 9, so that disturbance to the core is reduced; meanwhile, the piston 712 has a sucking effect on the core, so that the resistance of the core to barrel penetration is reduced;
S7, after coring is completed, the core is filled in the core inner cylinder 81, the piston 712 of the center rod 71 moves to the position of the positioning pipe section 812, and a sensor between the piston and the positioning pipe section sends out an alarm signal to display that coring is completed;
S8, starting continuous guide pipe operation equipment, lifting the continuous guide pipe 9, wherein the continuous guide pipe 9 pulls the core barrel upwards through the central rod 71, the anti-slip convex edge 8131 at the end part of the core inner barrel 81 clamps the core, the core is lifted into the pressure maintaining cabin, and the circular valve clack 684 of the self-gravity valve 682 at the lower end of the pressure maintaining cabin is closed;
S9, continuously lifting the continuous guide pipe 9, when the lifting force is greater than F, the spring clamping mechanism 62 contracts, the inner pipe assembly is lifted out of the outer pipe assembly, and then the continuous guide pipe 9 is quickly lifted;
S10, an inner blowout prevention joint is arranged at the lower part of the drill rod 4, and after the inner blowout prevention joint is lifted up, a blowout prevention valve cover 1407 is closed to separate the hole bottom from the hollow drill rod 4, so that gas in the hole bottom environment is prevented from being diffused outwards;
S11, after the inner tube assembly is lifted out of the drill rod 4 through the continuous guide tube 9, the quick connector at the tail end of the continuous guide tube 9 is disassembled, the inner tube assembly is taken down for disassembly, the fidelity cabin part is placed into the transfer cabin, and the upper hanging part is used for the second time.
Wherein step S1 comprises the sub-steps of:
S101, conveying the conveying device 2 to a coring site, and conveying the reeling device 1 to the rear of the conveying device 2;
S102, erecting a hydraulic cylinder bracket 1104 by using a drilling machine hydraulic cylinder 1205, and erecting an injection head 1202 together;
S103, driving the turnover device, and enabling the injection head 1202 to be in a horizontal state.
Step S4 comprises the following sub-steps:
S401, driving the turnover device, and enabling the injection head 1202 to be in a vertical state;
S402, a folding hydraulic rod 1208 acts, a plurality of arches 1224 extend, and the guide arches 1201 are lifted;
s403, the continuous conduit 9 extends from the reel device 1 through the calandria device assembly 1103 into the guide arch 1201;
s404, the continuous conduit 9 extends into the injection head 1202 from the guide arch 1201, a conveying chain 1211 in the injection head 1202 moves, a holding block 1214 on the conveying chain 1211 is clamped outside the continuous conduit 9, the holding block 1214 moves along with the conveying chain 1211, the holding block 1214 clamped on the periphery of the continuous conduit 9 clamps the continuous conduit 9 under the action of a hydraulic clamping mechanism 1218, and the continuous conduit 9 moves downwards;
s405, assembling the inner tube assembly, and connecting the continuous conduit 9 and the central rod of the inner tube assembly through a quick connector.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. Automatic alarm's gallery pressurize coring equipment, its characterized in that: comprises continuous catheter operation equipment and a corer;
the continuous conduit operation equipment comprises a transmission device, wherein the transmission device comprises an injection head and a tunnel drilling machine;
The coring device comprises an inner pipe assembly and an outer pipe assembly, the outer pipe assembly is connected with the tunnel drilling machine through a drill rod, the inner pipe assembly is connected with a continuous conduit, the injection head is used for lowering/lifting the continuous conduit, the inner pipe assembly is connected with the outer pipe assembly in a clamping way,
The inner tube assembly comprises an inner tube assembly and a central assembly, the central assembly comprises a central rod, the top end of the central rod is connected with a continuous guide pipe, the continuous guide pipe and the central rod are hollow structures, a cable is arranged in the continuous guide pipe and the central rod, a bottom surface device provides power and/or signals for electrical equipment in the corer through the cable,
The electrical equipment comprises a sensor, wherein the sensor is used for monitoring the total clamping state of the inner pipe assembly and the outer pipe, and the sensor is connected with the processing terminal through a cable; the sensor comprises a pressure sensor which is arranged in the spring clamping mechanism and is connected with the processing terminal through a signal cable, and the signal cable is arranged in the continuous conduit and the central rod;
The top of the inner tube assembly is provided with a latch mechanism, the inner wall of the top of the outer tube assembly is provided with a latch chamber, the outer wall of the latch mechanism is provided with latch grooves, the latch grooves are arranged along the circumferential direction, the two latch grooves are oppositely arranged, a latch is installed in each latch groove, a pin shaft is arranged between the two side walls of each latch groove and penetrates through the latch, the pin shaft is rotationally connected with the latch, the pin shaft is arranged at the bottom of each latch groove, the surface of the top of the latch, facing the latch mechanism, is provided with a spring hole, the top of each latch groove is provided with a dent, a pressure sensor is arranged in the dent, a spring is installed between the latch and each latch groove, one end of the spring is inserted into the spring hole, the other end of the spring is inserted into the dent, a limiting ring is installed at the edge of the top of each latch groove, the limiting ring is sleeved on the periphery of the latch mechanism, the limiting ring is in sliding connection with the latch mechanism, the bottom surface of the limiting ring is a first inclined surface facing the latch groove, the top of the latch is a second inclined surface, and the first inclined surface is adapted to the second inclined surface, and the distance of the top of the latch is ejected from the second inclined surface is controlled;
The outer pipe assembly comprises a first pipe section, a second pipe section, a third pipe section, a fourth pipe section, a reaming section and a coring bit which are coaxially installed and connected from top to bottom, wherein the middle part of the first pipe section is provided with a spring clamping chamber, the spring clamping chambers are circumferentially arranged, the number of the spring clamping chambers is two, the two spring clamping chambers are oppositely arranged, a suspension ring is arranged between the first pipe section and the second pipe section and is adapted to the edge of the bottom surface of a spring clamping mechanism, and when the inner pipe assembly reaches a preset position in the outer pipe assembly, the bottom surface of the spring clamping mechanism is located on the suspension ring and used for limiting the descending position of the inner pipe assembly;
When the inner tube assembly reaches the corresponding position of the outer tube assembly, the latch of the spring clamping mechanism enters the spring clamping chamber, the inner tube assembly is placed in the appointed position, the spring clamping mechanism is located on the suspension ring, the spring pressed on the pressure sensor is loosened, and the ground receives an in-place alarm signal of the pressure sensor.
2. The coring apparatus of claim 1, wherein: the inner tube subassembly includes the core urceolus, and core urceolus bottom is equipped with the dead weight valve, and the dead weight valve includes annular disk seat, circular valve clack, and circular valve clack border articulates annular disk seat top surface border, and circular valve clack has elastic structure.
3. The coring apparatus of claim 2, wherein: the bottom of the central rod is fixedly connected with a piston, a pressure maintaining controller is arranged in the piston,
The pressure maintaining controller comprises a pressure maintaining cylinder, the pressure maintaining cylinder is vertically arranged, a pressure maintaining piston is arranged in the pressure maintaining cylinder and is in sliding fit with the inner wall of the pressure maintaining cylinder, the pressure maintaining piston divides the pressure maintaining cylinder into an upper cavity and a lower cavity, the lower cavity is communicated with the bottom surface of the piston, and gas is filled in the upper cavity.
4. The coring apparatus of claim 1, wherein: a composite bearing is arranged between the inner pipe component and the central component, the central component comprises a positioning pipe section,
The composite bearing comprises a base, wherein the base is in a thrust bearing form, the base is arranged in the inner pipe assembly, an annular ball recess is formed in the inner wall of the base, a plurality of ball holes are formed in the middle of the positioning pipe section along the circumferential direction, the spherical rollers are arranged in the ball holes, and the convex parts of the spherical rollers are matched with the ball recesses.
5. The coring apparatus of claim 4, wherein: the central component is provided with a first annular convex edge, a thrust bearing is arranged between the first annular convex edge and the inner pipe component, and the first annular convex edge is positioned between the two thrust bearings.
6. The coring apparatus of claim 1, wherein: the center assembly further comprises a core inner barrel, the bottom of the center rod is inserted into the core inner barrel, the bottom end of the center rod is provided with a temperature sensor and a pressure sensor, the processing terminal is connected with the temperature sensor and the pressure sensor through signal cables, and the signal cables are arranged in the continuous guide pipe and the center rod.
7. The coring apparatus of claim 1, wherein: the continuous conduit operation equipment also comprises a reeling device, the reeling device comprises a collecting ring and a reel, a cable in the continuous conduit is electrically connected with the collecting ring, the reel is arranged on a reel frame, a calandria device assembly is arranged on the reel frame and used for controlling the sequence of the continuous conduit reels, and the reel is driven by a reel motor;
The calandria device assembly comprises a bracket and a moment limiter, a lifting hydraulic rod is arranged between the bracket and the winding drum frame, a bidirectional screw rod is arranged on the bracket, a guide device is arranged on the bidirectional screw rod, a mechanical counter and a rotating system are arranged in the guide device, the rotating system comprises a plurality of conveying wheels, and a lifting oil cylinder is arranged between the guide device and the bidirectional screw rod.
8. The coring apparatus of claim 4, wherein: the bottom end of the positioning pipe section is provided with an alarm sensor which is a pressure sensor.
9. The coring apparatus of claim 1, wherein: the injection head comprises two conveying mechanisms which are arranged side by side, the continuous conduit is positioned between the two conveying mechanisms, and the continuous conduit is clamped and transferred by the two conveying mechanisms.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010346387.1A CN111502579B (en) | 2020-04-27 | 2020-04-27 | Automatic alarm's gallery pressurize coring equipment |
| PCT/CN2021/073844 WO2021218252A1 (en) | 2020-04-27 | 2021-01-26 | Tunnel pressure coring equipment having automatic alarm function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010346387.1A CN111502579B (en) | 2020-04-27 | 2020-04-27 | Automatic alarm's gallery pressurize coring equipment |
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| CN111502579A CN111502579A (en) | 2020-08-07 |
| CN111502579B true CN111502579B (en) | 2024-09-03 |
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| CN111550205B (en) * | 2020-04-27 | 2024-11-08 | 深圳大学 | Alarm device for tunnel coring equipment |
| CN111502579B (en) * | 2020-04-27 | 2024-09-03 | 四川大学 | Automatic alarm's gallery pressurize coring equipment |
| CN113187446B (en) * | 2021-05-08 | 2022-03-25 | 广州海洋地质调查局 | Sand control screen pipe capable of measuring compaction settlement stress in hydrate pilot production process |
| CN115478800B (en) * | 2022-09-19 | 2023-09-19 | 中煤科工集团重庆研究院有限公司 | Coal seam fixed-point quick-freezing coring device and coring method |
| CN116677330B (en) * | 2023-07-31 | 2023-12-01 | 山东科瑞油气装备有限公司 | Quick working vehicle and working method for working tube |
| CN117759146B (en) * | 2024-02-22 | 2024-05-07 | 山东省三河口矿业有限责任公司 | Rock stratum drilling equipment for coal mine exploitation of fast assembly pipe fitting |
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| CN111502579A (en) | 2020-08-07 |
| WO2021218252A1 (en) | 2021-11-04 |
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